Multi-section type punching and bending forming structure convenient to adjust
Through the multi-stage stamping bending forming structure and multi-angle adjustable design, the complexity of multiple bending forming in the production of electrostatic release grounding brush holders is solved, efficient and high-quality bending forming is achieved, and the production process is simplified.
Patent Information
- Application Number
- CN202421229604.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-05-31
AI Technical Summary
In the prior art, when producing an electrostatic release grounding brush holder, the grounding brush holder has high size requirements and is in the form of a square tube, and it requires multiple bending and forming, resulting in complex and difficult production.
Adopt multi-stage stamping and bending forming structure, including pressing line punching, cutting, one-stage folding, two-stage folding, riveting forming and discharge. The folding effect is improved through multi-angle adjustable design, and the sheet is Both sides are fixed with end pressing components to ensure molding quality.
It realizes efficient bending and forming of square tube shape, improves production efficiency and molding quality, simplifies the production process and reduces difficulty.
Smart Images
Figure CN222511264U_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of stamping and forming, and specifically relates to a multi-stage stamping and bending forming structure which is easy to adjust. Background Art
[0002] The motor is mainly composed of a stator, a rotor and a mechanical structure, and the stator and the rotor are the key components of the motor. When the new energy vehicle drive motor is running, due to the imbalance of the internal winding, there is a potential difference between the stator and the rotor, and the current will flow through the bearings and the shaft, causing electrical corrosion; on the other hand, since the high-frequency voltage of the inverter will also pass through the bearings and the shaft, this will increase the risk of electrical corrosion of the bearings and the shaft. In order to solve the electrical corrosion phenomenon, electrical insulating bearings, hybrid ceramic bearings or additional electrostatic discharge grounding brush holders are generally used.
[0003] The electrostatic discharge grounding brush holder is a carbon brush assembly installed on the motor housing, one end of which is connected to the motor housing through a brush box, and the other end is connected to the shaft through the contact between the carbon brush, thereby forming an electrical conduction loop between the motor shaft and the grounding terminal of the motor. This loop can discharge instantly, eliminate the potential difference caused by the operation of the drive motor, and instantly release the electrostatic load existing in the operation of the drive motor, thereby avoiding the occurrence of electrical corrosion.
[0004] The shape of the grounding brush holder is a long square tube, and a plurality of openings are provided on the outer surface of the grounding brush holder. An end edge is extended at one end of the grounding brush holder. Therefore, in order to achieve efficient mass production of the grounding brush holder, stamping and bending are required to bend the sheet material, thereby achieving a direct forming effect.
[0005] However, the size requirements of the grounding brush holder are relatively high. The shape of the grounding brush holder is a square tube, which needs to be bent multiple times to form. The length of the square tube of the grounding brush holder is relatively long. When it is finally bent and riveted, there is no position for pressing the material in the square tube structure of the grounding brush holder. Therefore, the production is very complicated and difficult. Utility Model Content
[0006] In order to solve the above problems, this paper proposes a multi-stage stamping and bending forming structure that is easy to adjust. The stamping and bending forming structure includes line pressing and punching, blanking, one-stage folding, two-stage folding, riveting and discharging. The one-stage folding includes one primary folding and one secondary folding, and the two-stage folding includes two primary folding and two secondary folding. The folding angles of the one primary folding and the two primary folding are 45 degrees, the folding angle of the one secondary folding is 80 degrees, and the folding angle of the two secondary folding is 90 degrees. The front and rear ends of the two-stage primary folding, the two-stage secondary folding and riveting are both provided with end pressing components, and the end pressing components include end The part triggers the edge insertion, the translation pressing slider and the translation guide column. The translation pressing slider is arranged at the front and rear ends of the two-stage primary folding, the two-stage secondary folding and the riveting forming. The upper outer sides of the two ends of the translation pressing slider are provided with end triggering edges. The inner end of the translation pressing slider is laterally aligned with the sheet material and is provided with a pressing groove. The outer end of the translation pressing slider is fixedly connected to the translation guide column. By using multi-stage stamping folding to ensure that the square tube shape is bent and formed, and the multi-angle adjustable design can also improve the bending effect of various folding edges. The end pressing components are used on both sides of the sheet material to achieve end pressing, which can achieve a fixing effect that will not affect the appearance of the pipe fittings and ensure the stamping and bending quality.
[0007] The stamping and bending forming structure is a straight-through upper and lower stamping components. Stamping plates are arranged between the stamping and bending forming structures from left to right. Adjustment and shaping are arranged between one section of primary folding, one section of secondary folding, two sections of primary folding, two sections of secondary folding and riveting forming of the stamping and bending forming structure. The adjustment function after each bending ensures the stability of the size during the production process.
[0008] One section of the folding edge is a downward pressure folding edge component, and the bottom center of the one section of the primary folding edge and the one section of the secondary folding edge are both provided with a middle downward pressure block, and both sides of the middle downward pressure block are provided with a folding die, and the upper part of the middle downward pressure block is provided with a convex mold, and the shapes of the convex mold and the folding die match each other. The bevel angle between the convex mold of the one section of the primary folding edge and the folding die is 45 degrees, and the bevel angle between the convex mold of the one section of the secondary folding edge and the folding die is 80 degrees. Since one section of the folding edge is a direct bending of the two sides of the plate material, the bending width is small, so it can be conveniently and practically realized by downward pressure bending, and sufficient margin is left during the secondary folding, so as to facilitate the calibration of the integrated size during the final riveting.
[0009] The two-stage folding edge is a downward pressure and jacking type folding edge component, and the front and rear ends of the two-stage primary folding edge and the two-stage secondary folding edge are both provided with end pressing assemblies, and the bottoms of the two-stage primary folding edge and the two-stage secondary folding edge are both provided with side bending push blocks, and side translation axes are provided between the side bending push blocks, and side trigger plug-ins are provided on both sides of the side bending push blocks. A center downward pressing block is provided between the side trigger plug-ins, and the bottom surfaces of the center downward pressing blocks of the two-stage primary folding edge and the two-stage secondary folding edge are both provided with avoidance grooves, and the side bending push blocks of the two-stage primary folding edge are beveled edge folding angles of 45 degrees, and the side bending push blocks of the two-stage secondary folding edge are beveled edge folding angles of 90 degrees. Since the width of the two-stage folding edge is large and is affected by a section of bent bending edge, the end pressing assembly can be used to fix the two sides of the plate that has not been completely unloaded from the plate, thereby achieving the fixing effect of stamping and bending.
[0010] The riveting forming is an upper pressure riveting, and a bottom center pad is provided at the bottom of the riveting forming, and forming slots are provided on both sides of the bottom center pad, and a middle lower pressure block is provided above the forming slot, and a riveting gun is provided at the center of the middle lower pressure block of the riveting forming. Since the final riveting forming is performed by pressing up and down for the final connection and fixation, there is no basic stress pressure point. Therefore, the end pressing assembly can be used to fix the two sides of the plate that has not been completely cut from the plate, thereby achieving the fixing effect of the overall parts during riveting.
[0011] A pressure-guiding bevel is provided above the outer end of the translational pressing slider, and the translational pressing slider is connected to the end triggering plug edge in a translational sliding manner. A pressing groove is horizontally provided in the middle of the inner end surface of the translational pressing slider. The thickness of the pressing groove is greater than the thickness of the sheet material. By arranging pressing grooves at the inner ends of the translational pressing sliders on both sides of the sheet material, the sheet material and the upper part thereof can be conveniently fixed directly through the displacement of the translational pressing slider, which is convenient for the fixing effect of secondary bending and riveting forming.
[0012] Beneficial effects:
[0013] By using multi-stage stamping and folding to ensure that the square tube shape is bent and formed, and the multi-angle adjustable design can also improve the bending effect of various folding edges, and using end pressing components on both sides of the sheet to achieve end pressing, it can achieve a fixing effect that will not affect the appearance of the pipe fittings, thereby ensuring the quality of stamping and bending.
[0014] The adjustment function after each bend ensures dimensional stability during the production process.
[0015] Since one section of the folding edge is directly bent, the bending width on both sides of the plate is small, so it can be conveniently and practically realized by pressing down and bending, and sufficient margin is left during the second folding to facilitate calibration of the integrated size during the final riveting.
[0016] Since the width of the two-section folded edge is large and there is a curved edge, the end pressing assembly can be used to fix the two sides of the sheet that has not been completely cut from the sheet, thereby achieving the fixing effect of stamping and bending.
[0017] Since the final riveting is performed by pressing up and down for the final connection and fixation, there is no basic stress pressure point. Therefore, the end pressing assembly can be used to fix the two sides of the plate that has not been completely cut from the plate, thereby achieving the fixing effect of the entire part during riveting.
[0018] By arranging pressing grooves at the inner ends of the translation pressing sliders on both sides of the sheet, the sheet and the upper part thereof can be conveniently fixed by directly moving the translation pressing slider, which facilitates the fixing effect of secondary bending and riveting. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a material strip diagram of a multi-stage stamping and bending forming structure that is easy to adjust;
[0020] Figure 2 It is a schematic diagram of the structure of the grounding brush holder;
[0021] Figure 3 It is a schematic diagram of the front pressing of a multi-stage stamping and bending forming structure that is easy to adjust;
[0022] Figure 4 It is a schematic diagram of the front opening of a multi-stage stamping and bending forming structure which is easy to adjust;
[0023] Figure 5 It is a partially enlarged schematic diagram of the folding of a multi-stage stamping and bending forming structure that is easy to adjust;
[0024] Figure 6 It is a partially enlarged schematic diagram of the riveting of a multi-stage stamping and bending forming structure that is easy to adjust;
[0025] Figure 7 It is a schematic diagram of the pressing end material of a multi-stage stamping and bending forming structure that is easy to adjust;
[0026] Figure 8 It is a schematic diagram of an open-end pressing material of a multi-stage stamping and bending forming structure that is easy to adjust;
[0027] Figure; 1. Crimp punching, 2. End blanking, 3. Side blanking, 4. One section primary folding, 5. One section secondary folding, 6. Two sections primary folding, 7. Two sections secondary folding, 8. Riveting and forming, 9. Discharging, 10. Side translation axis, 11. Side bending push block, 12. Middle lower pressure block, 13. Side trigger plugging, 14. Bottom center pad, 15. End trigger plugging, 16. Translational pressing slider, 17. Pressing trough, 18. Translation guide column, 19. Grounding brush holder. DETAILED DESCRIPTION
[0028] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.
[0029] Wire pressing punching 1, end blanking 2, side blanking 3, one section primary folding 4, one section secondary folding 5, two sections primary folding 6, two sections secondary folding 7, riveting and forming 8, discharge 9, side translation axis 10, side bending push block 11, middle lower pressure block 12, side trigger plug 13, bottom center pad 14, end trigger plug 15, translation pressing slider 16, pressing groove 17, translation guide column 18, grounding brush holder 19.
[0030] like Figure 1 , 2 , 3, 4, 5, 6, 7, 8;
[0031] A multi-stage stamping and bending forming structure that is easy to adjust, the stamping and bending forming structure includes a line pressing punching 1, a blanking material, a first-stage folding edge, a second-stage folding edge, a riveting forming 8 and a discharging material 9, wherein the first-stage folding edge includes a first-stage folding edge 4 and a second-stage folding edge 5, and the second-stage folding edge includes a second-stage folding edge 6 and a second-stage folding edge 7. The folding angles of the first-stage folding edge 4 and the second-stage folding edge 6 are 45 degrees, the folding angle of the second-stage folding edge 5 is 80 degrees, and the folding angle of the second-stage folding edge 7 is 90 degrees. The front and rear ends of the second-stage folding edge 6, the second-stage folding edge 7 and the riveting forming 8 are both provided with end pressing components, and the end pressing components include an end triggering insert 15, a translation pressing slider 16 and The translation guide post 18, the translation pressing slider 16 is arranged at the front and rear ends of the second-stage primary folding edge 6, the second-stage secondary folding edge 7 and the riveting forming 8, and the upper outer sides of the two ends of the translation pressing slider 16 are provided with end triggering inserts 15, and the inner end of the translation pressing slider 16 is laterally aligned with the sheet material and provided with a pressing groove 17, and the outer end of the translation pressing slider 16 is fixedly connected to the translation guide post 18, and the stamping and bending forming structure is a straight-through upper and lower stamping assembly, and stamping plates are arranged between the stamping and bending forming structures from left to right, and adjustment shaping is arranged between a first folding edge 4, a second folding edge 5, a second-stage primary folding edge 6, a second-stage secondary folding edge 7 and the riveting forming 8 of the stamping and bending forming structure, and a folding edge is a downward pressure folding edge assembly, and the A middle lower pressing block 12 is provided at the bottom center of a first folding edge 4 and a second folding edge 5, and a folding die is provided on both sides of the middle lower pressing block 12, and a convex mold is provided above the middle lower pressing block 12, and the shapes of the convex mold and the folding die match each other, the bevel angle of the convex mold of a first folding edge 4 and the folding die is 45 degrees, and the bevel angle of the convex mold of a second folding edge 5 and the folding die is 80 degrees. The two-section folding is a downward pressure and lifting folding component, and the front and rear ends of the second-section primary folding edge 6 and the second-section secondary folding edge 7 are provided with end pressing components, and the bottoms of the second-section primary folding edge 6 and the second-section secondary folding edge 7 are provided with side bending push blocks 11, and side translation axes 10 are provided between the side bending push blocks 11, and the two sides of the side bending push blocks 11 A side trigger plug 13 is provided on the upper part of the side outer part, a center pressing block is provided between the side trigger plug 13, and the bottom surfaces of the center pressing blocks of the second-stage primary folding edge 6 and the second-stage secondary folding edge 7 are provided with avoidance grooves, the side bending push block 11 of the second-stage primary folding edge 6 is a bevel folding angle of 45 degrees, and the side bending push block 11 of the second-stage secondary folding edge 7 is a bevel folding angle of 90 degrees, the riveting forming 8 is an upper pressure riveting, and a bottom center pad 14 is provided at the bottom of the riveting forming 8, and molding slots are provided on both sides of the bottom center pad 14, and a middle pressing block 12 is provided above the molding slot, and a riveting gun is provided at the center of the middle pressing block 12 of the riveting forming 8, and a pressure guiding bevel is provided above the outer end of the translational pressing slider 16,The translational pressing slide block 16 is connected to the end triggering insert 15 in a translational sliding manner, and a pressing groove 17 is horizontally arranged in the middle of the inner end surface of the translational pressing slide block 16, and the thickness of the pressing groove 17 is greater than the thickness of the sheet material.
[0032] Implementation examples;
[0033] During use, the sheet material enters from the left end of the stamping and bending forming device, and is sequentially subjected to line pressing and punching 1, material cutting, one-stage folding, two-stage folding, riveting and forming 8, and material discharging 9 to complete the stamping production of the grounding brush holder 19.
[0034] During the first and second folding, double-stage folding is performed twice respectively, so as to ensure that the product size can meet the requirements of the drawing. The bevel angle between the punch and the folding die of the first folding 4 is 45 degrees, the bevel angle between the punch and the folding die of the second folding 5 is 80 degrees, the side bending push block 11 of the second first folding 6 has a bevel folding angle of 45 degrees, and the side bending push block 11 of the second second folding 7 has a bevel folding angle of 90 degrees.
[0035] During the two-stage folding and riveting forming 8, the end-triggered insert 15 is used to move downward to move the translational pressing sliders 16 on the outside of the two ends of the plate inward at the same time, and the pressing grooves 17 at the inner ends of the translational pressing sliders 16 are inserted into the two ends of the plate, thereby fixing the plate, and then the subsequent two-stage folding and riveting forming 8 that are not pressed up and fixed can be pressed and formed.
[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A multi-stage stamping and bending forming structure that is easy to adjust, the stamping and bending forming structure includes pressing and punching, blanking, one-stage folding, two-stage folding, riveting and forming, and discharging, characterized in that: The one section of folding edge comprises one section of primary folding edge and one section of secondary folding edge, the two sections of folding edge comprise two sections of primary folding edge and two sections of secondary folding edge, the folding angles of the one section of primary folding edge and the two sections of primary folding edge are 45 degrees, the folding angle of the one section of secondary folding edge is 80 degrees, and the folding angle of the two sections of secondary folding edge is 90 degrees, and the front and rear ends of the two sections of primary folding edge, the two sections of secondary folding edge and the riveting forming are all provided with end pressing components, and the end pressing components comprise end triggering inserts, a translational pressing slider and a translational guide column, the translational pressing sliders are all provided at the front and rear ends of the two sections of primary folding edge, the two sections of secondary folding edge and the riveting forming, and the upper outer sides of the two ends of the translational pressing slider are provided with end triggering inserts, and the inner end of the translational pressing slider is laterally aligned with the sheet material and provided with a pressing groove, and the outer end of the translational pressing slider is fixedly connected to the translation guide column.
2. The easily adjustable multi-stage stamping and bending forming structure according to claim 1, characterized in that: The stamping and bending forming structure is a straight-through upper and lower stamping components, and stamping plates are arranged between the stamping and bending forming structures from left to right. Adjustment and shaping are arranged between one section of primary folding, one section of secondary folding, two sections of primary folding, two sections of secondary folding and riveting forming of the stamping and bending forming structure.
3. The easily adjustable multi-stage stamping and bending forming structure according to claim 1, characterized in that: The described section of folding edge is a downward pressure folding edge component, and the bottom center of the described section of primary folding edge and section of secondary folding edge are both provided with a middle downward pressure block, and folding dies are provided on both sides of the described middle downward pressure block, and a convex die is provided above the described middle downward pressure block, and the shapes of the convex die and the folding dies cooperate with each other.
4. The easily adjustable multi-stage stamping and bending forming structure according to claim 3, characterized in that: The bevel angle between the convex die of the first folding section and the concave die of the folding section is 45 degrees, and the bevel angle between the convex die of the second folding section and the concave die of the folding section is 80 degrees.
5. The easily adjustable multi-stage stamping and bending forming structure according to claim 1, characterized in that: The two-stage folding edge is a downward-pressing and lifting folding edge component, the front and rear ends of the two-stage primary folding edge and the two-stage secondary folding edge are provided with end pressing components, the bottoms of the two-stage primary folding edge and the two-stage secondary folding edge are provided with side bending push blocks, side translation axes are provided between the side bending push blocks, side triggering plug-ins are provided on the upper outer sides of the two sides of the side bending push blocks, a central downward pressing block is provided between the side triggering plug-ins, and the bottom surfaces of the central downward pressing blocks of the two-stage primary folding edge and the two-stage secondary folding edge are provided with avoidance grooves.
6. The easily adjustable multi-stage stamping and bending forming structure according to claim 5, characterized in that: The side bending push block of the two-stage primary folding has a bevel folding angle of 45 degrees, and the side bending push block of the two-stage secondary folding has a bevel folding angle of 90 degrees.
7. The easily adjustable multi-stage stamping and bending forming structure according to claim 1, characterized in that: The riveting forming is an upper pressure riveting, and a bottom center pad is provided at the bottom of the riveting forming, and forming slots are provided on both sides of the bottom center pad. A middle lower pressure block is provided above the forming slot, and a riveting gun is provided at the center of the middle lower pressure block of the riveting forming.
8. The easily adjustable multi-stage stamping and bending forming structure according to claim 1, characterized in that: A pressure-guiding bevel is provided above the outer end of the translational pressing slider, and the translational pressing slider is connected to the end triggering plug edge in a translational sliding manner. A pressing groove is horizontally provided in the middle of the inner end surface of the translational pressing slider, and the thickness of the pressing groove is greater than the thickness of the sheet material.